3f7dbf3859b10fe184963b217e2ccdab003507db74af3464d5e7ee7361f49c78

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 05:27

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General

Target

2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe
Size

49KB
MD5

0c323eb4fd212ee2da1a901f5c188635
SHA1

94ad35c83b4e7e65ff670f87402d1ded9d2714a1
SHA256

3f7dbf3859b10fe184963b217e2ccdab003507db74af3464d5e7ee7361f49c78
SHA512

e49ba4d7fcda05008c80cbb21c876ebe8a0281be8714941c6221afe93657376f229fa031bb499440ab8ac7420fbac684209098cf9f915c086bdb2c064782a77e
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfq:X6QFElP6n+gJBMOtEvwDpjBtEdXfq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002327d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002327d-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4892	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3640 wrote to memory of 4892	3640	2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe	83
PID 3640 wrote to memory of 4892	3640	2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe	83
PID 3640 wrote to memory of 4892	3640	2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_0c323eb4fd212ee2da1a901f5c188635_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3640
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
49KB

MD5
7a545ce8f6badc9eef6afadb4a9c03ae

SHA1
a9c433105b6440a085877906a09c0605ca95b3ba

SHA256
dedd69f3c950b48ff2fe74bb19783dcefa6f331cfaa0314fe4f5efd76dfd21a2

SHA512
284a533394e1dba856132930eb69ca99174618b4251aa427b379becefe3c3f5a40a54ee39271f5034246b8b8b1aa2e09a0b5bff4538c77bf00b361fa9d69c2a2

Download Submit
memory/3640-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3640-8-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3640-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4892-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4892-23-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download